Conflicting formatting results

I am working on a project where I bring data in from our accounting software's database to create some inventory count sheets. In order to ensure I have the latest data, I have a macro that is supposed to update the table, and format the columns to autofit the contents.

Sub UpdateAll()
'
ActiveWorkbook.RefreshAll
Cells.Columns.AutoFit

End Sub

When it runs, it does the update, it does the autofit, and then it sets the columns of the table portion of the sheet to 8.43. I have tried using a range specifying the exact columns I needed formatted and get the same result. I don't see what I am doing wrong, and when I step through it using the debugger it finishes correctly.

Thanks for your help!